During the night dive, several swellsharks inflated themselves when startled, amusing the researchers.

The river swell'd overnight, flooding the low fields.

Don't let that swellhead get to you; he thinks he's better than everyone else.

Despite their bad ideas, the swellheads refused to admit they were wrong during the meeting.

The swellability of the hydrogel determines how much water it can absorb under physiological conditions.

Researchers compared the swellabilities of different hydrogels to predict their performance in tissue engineering.